10/06/2026
This 2018 BMW 430i Grand Coupe started overheating and would not go over 25mph, resulting in an appointment with our shop. During our customary inspection, our technician performed a coolant pressure test. They found a significant leak coming from under the water pump and the thermostat.
We are recommending replacing the pump, thermostat and the coolant expansion tank cap. Next we will flush the cooling system, then, of course, retesting.
Call Bavarian Auto Haus at 775-825-6511.